Line StarTech.com PCI Express Serial Card - 2 port - Dual Channel 16C1050 UART - Serial Port PCIe Card - Serial Expansion Card

Compliant with PCI Express 1.0a specification, compatible with 1x, 2x, 4x, 8x, and 16x PCIe bus Support for 5,6,7 or 8 data bits Standard profile bracket installed, optional dual low-profile brackets included 256-Byte deep FIFO per transmitter and receiver Dual-channel 16C1050 UART for full compatibility with 16C1050 devices Maximum data transfer rate of 460Kbps Out-of-band hardware flow control using RTS / CTS In-band software flow control using programmable Xon/Xoff in both directions